Carbureter.



PATENTED APR. 28, 1908.

3 SEEMS-SHEET 1.

INVENTOR ATTORNEY WITNESSES:

.NO. 885,905. PATENTED APR. 28, 1908,

s. G. AVERELL.

- GARBURETBR. APPLICATION FILED APR 28,1906.

' 3 sums-sum: 2.

PATENTED APR. 28, 1908.. S. G. AVERELL. GARBURETER.

AiPLIOATION FILED APB. 28,1906.

3 SHEETS-SHEET 3.

INVENTOR ATTORNEY To all whom iii mag} concern:

r rarer entire.

I SYLVESTER G. AVERELLQOF New YORK, n. Y.

Y .oennunnrnaj No. season; specification 0 Application med spin at,1906. Seriaino} 314,138.

Be it known that I, SYLvnsTEn G. .hvnnnu, citizen of the-United States,residmg at New York, in the county of New York and State'of New, York,have invented acertain new and useful. Im rovement in Carburetera'ofwhich:; the ollowingis a specification.

. an inflaahle mixture.

caused to rotate w \The principle of carbon formedint ewhole unimme'rsearea of a cylindrical cafiiilllary screen-which is G saidhydrocarbon;'and y the construction ofthe device to impart to said airduring its assage through said screen, a low velocity.

y reason of the exposure of the maximum film area of the screen to theaction of the air and of the low velocity of the air current, saidairbecomes charged only with hydro-" carbon va or and not with hydrocarbonliquid; an therefore the, known disadvantages incident to the use ofairmoreorless charged with hydrocarbon liquid as an en'- plosive mixture ingas engines are avoided.

In the accom ipnying draWingsFi v ig. 2 is a vertical'section on is alan view.

the ineac a; of Fig.1, and Fig. 3 is'a vertical section. on the line y'y of Figs.- 1' and 2.

Similar numbers of reference indicate like parts.

1 is the casing, having a main chamber 2 v in which is the carburetingvessel and also an auxiliary chamber 3 which communicates bly theconduit 4 withthe chamber 2. In t e bottom of auxiliarychamber 3-isseated a ball. valve 5, which regulates the flow of liquid hydro-carbonor other volatilizable -liq'uid into said chamberi'rom the. supplypiped, The stem ofvalve 5 is connected to a float 7, which rises withthe liquid level in said chamber and so closes valve 5 when said li uidhas reached a predetermined level in bot chambers 1 and 2. The quantityof liquid hydro-carbon in chamber 1 is thus re lated and kept uniform,

articular attention is called to the following; first, that the immersedareaof the wire gauze cylinderis small as compared with the j the areaof; immersion should beno grbater than wi'll' efficiently produce theliqnidfilms in the capillary screen formedby the cylinder The inventiohrelates 'to carbureters for charging air with hydro carbon to produce Ithe .invention is as follows to draw air through films of liquid h .dro-

artlyimmersed in unimmersed area (see Fig. 3) and,'.in .fact

i Letters Patent. Patented April as, lees.

'foraminate'd (wire gauze) cylinder. 10.

disk supportin siaft .14. The disks 8, 9 have cy indrica outer ends, ass own at 16. Across these opleinings extend the transverse bars 17 in Wprojections 15 and coaxial With-shaft 14 is a wall. Ontheoutsi eof thetube and extending over said slots are buckets 20.

- The casing 1 preferably diminishes in area upward to the outletduct21. Extending across said casing is a tube 22 having a foraminated'wall covered with wire gauze 3 smaller tube 25 preferably closed at itsend 26 and extendin through the wall .of the suctionoi a gas engine atthe duct films in the form of vapor, and-not in the i the ournaled atits ends in the bars 12, 13'which ex.

tend across openings in the casing wall, is the 7 projections 15 open attheir oh the shaft 14 is secured. Entering the tube 18 having lon'itudinal slots 19 in its wherein its velocity becomes greatly reduced;1

. and open preferabl at .both ends 24 tothe atmosphere. Para lelto" tube22exten'dsaz9 casing outside 0 which it has a valve 27.

Tube 25 is also foraminatedand covered withwire gauze. Across the.casing and above the tubes 22. and25 extends a wire gauze vpartit'ion28and above this are bafie plates 29. a 4

The operation of the device is as follows: A regulated quantity of'liuid hydrocarbon or other volatilizable ii in: being admitted caused atthe outlet duct 21 by a as e ine or by any other suitable means. drawninto the tube I'Sfthmugh the o en ngs 16 in disks s,;9=,aeid; escapesthrough t e slots .19 7

' iiltketsflflrandso setting said tube and tent-Lethe disks 8,9 and iregauze cylinder 10 in rotation u on shaft 14 as an axis. The cylinder 10in t u-s'rotating enters the liquid hydrocarbon and takes up the same inthe 1st en to the chamber 2 inom c amber 3, suction is said;tube,strik'mg the conca ities of interstices of'the wire gauze, and the airbein drawn through these interstices in turn lary screen. .causes airtoenter at both ends of tube 22 and pass through the openings in said tube,andwire gauze covering thereof. This air,

not charged with hydrocarbon, mingles with the already charged air todilute the same.

'Ihe 1final mixture passes through the wire gauze artition 28 to theescape outlet 21 and i so to tie engine or to wherever elsei t is to betions of charged air and unchar ed air in order to compensate forexterna pressuremay be necessary.

utilized.

I desire now to call particular attention'to the fact that with a givensuction the amount of air which enters the. wire gauze cylinderand therebecomes charged with hydrocarbon depends upon the combined areas of theopenings 16 in disks.8 and 9. Also that with the same suction the amountof air which enters the tube 22 de ends upon the cross sectional area ofsaid tu e, doubled because the tube is .open at both endsf Hence byproportioning the cross sectional area of tube 22 and the area ofopenings 16, I am enabled to control the relative proportions of'chargedand uncharged air and thus produce a mixture of definite proportions,irrespective of variations in the pressure or quantity of air enteringthe apparatus. Or, in other words, this is a carbureter in which therelative proportions of charged air and uncharged air does not dependupon and is not controlled by variations in suction or air pressure; buton the contrary are maintained the same through initial proportioning ofthe air inlets in the manner described. ,I The object of the tube 25having the ,valve 27, is to slightly vary the relative propordifferencessuch 'as barometric variations. To this end, the valve 27' which is keptnormally closed is opened to Whateverextent While I prefer to rotate thecylinder 10 by the buckets '20, this construction isnot essentialinasmuch as I may cause the rotation of cylinder shaft 14 by anysuitable means.-. I claim:

1. In a carburetor, a casing for containing liquid hydrocarbon, a hollowrotary capillary screen receiving in its interior the air to becarbureted, artly immersed in said hydrocarbon and aving theinterstitial area of its unimmersed portion mechanically un obstructed,an air inlet to the interior of said screen and an escape duct receivingcarbureted air from the Whole unimmersed peri hery of said screen; thecombined area of t e interstitial openings in the said unim- I mersedportion of the screen being greater 1 than that of said air inletwhereby the velocity of the air passing through said'screen isdecreased.

2. Ina carbureter, a casing for containing iiquid hydrocarbon, a rotarycylindrical capillary screen partly immersed in said hydrocarbon, andhaving an airinlet in its;

end for admitting air directly to its interior and a duct having anenlarged-inlet and constructed directly to receive from. said screen theair flow passingthrough the whole interstitial area of the unimmersedportion thereof; the combined area of the interstitial 0 en ings in thesaid vunimmersed portion 6 the screen being greater than that of saidair inlet whereby the velocity of the air passing throu h said screen isdecreased.

' 3. In a carbureter, a casing for containing liquid hydrocarbon, arotary shaft therein, heads on said shaft having air inlet openings, acylindrical capillary'screen carried by said heads and partly immersedin said hydrocarbon, and a duct constructed to receive-directly fromsaid screen the air flow passing through the whole interstitial area of.the unimmersed ortion thereof.

4. In a car ureter, a casing forcontaining liquid hydro carbon, a rotaryvessel having a foraminated circumferential wall entering said liquidand an open foraminated tube seated at its extremities in opposite wallsof said casing and disposed above said vessel and between said vesseland an outlet in said casing.

5. n a carbureter, a casing for containing liquid hydro-carbon, a rotaryvessel having a foraminated circumferential wall entering said liquid,an open foraminated tube seated at its extremities in opposite walls ofsaid casing, a second foraminated tube extending into said casing andclosed at its inner end, and a valve in said tube controllable outsideof said casing. v

6. In a carbureter of the type in which air to be carburetedis caused totraverse the device by suction from a gas engine or the like, a casingfor containing liquid hydrocarbon, a rot capillary screen receiving saidair in itsmterior, partly immersed in said carbon and having theinterstitial area of its unimmersed portion mechanically unobstructedand means actuated by said air for rotating said screen.

7. In a carburetor of the type in which air to be carbureted is causedto traverse the device by suction from a gas engine or the like, acasing for containing liquid hydrocarbon, a rotary capillary screenreceiving said, air inits interior, partly immersed in said carbon andhaving the interstitial area of its unimmersed portion mechanicallyunobstructed and means disposed in the s ace surrounded by said screenand actuate by said air for rotating said screen.

8. In a carbureter of the type in which air to be carbureted is causedto traverse the device by suction from agas e ine or the'like a casingfor containing liquid ydro-carbon,

a rotary capillary screen receiving said air in its interior, partlyimmersed in said carbon and having the interstitial area of itsunimmersed portion mechanically unobstructed be carbureted, partlyimmersed in said hydrocarbon and having the interstitial area of itsunimmersed portion mechanically unobstructed,- an escape ductreceiving'carbureted air from the Whole unimmersed periphery of saidscreen and means actuated by the incoming air for rotating said screen.

10 In a carburetor, a casing for containing liquid hydro-carbon, a shaftjournaled in said casing, heads-supported on said shaft and having airopenings, a capillary screen .on said heads having an openings in-itsWall and disposed within said screen and su ported on said heads andbuckets on t e outer surface of said screen in proximity to saidopenings.

In testimony whereof I have afiixed my signature" in resence of twowitnesses. I

\ S LVESTER G. AVERELL.

Witnesses:

WM; H. SIEGMAN, PARK BENJAMIN, Jr.

